Bottle



Feb. 27, 1945. M, R RRRR N 2,370,535

TTTTT LE Fi llllllllllll 42 Patented Feb. 27, 1945 UNITED STATES PATENT OFFICE nor'rnnv Monroe Harrison, Chicago, Ill. 1 Application July 24., 1942, Serial No. 452,20

4Claims. (Cl. 215-31) g r This invention relates to bottles in general and more particularly to the portion of a bottle at the bottle closure.

It is one of the objects of the present invention to provide a bottle of the type having the usual narrow neck terminating in a filling and discharging opening, with means for facilitating closure of the opening.

In accordance with the preferred embodiment of the present invention the bottle opening is closed in the usual manner by aplug of compressible material, preferably a paper plug, although the plug may be made of cork, rubber, or the like. The plug is inserted into the open end of the bottle in the usual manner, and makes a press fit therein toclose the opening. In accordance with the principles of the present invention at least a portion of the surface of the bottle wall which is engaged by the plugor closure is roughened or knurled to cause the bottle to grip the plug or stopper firmly against accidental expulsion, and yet permit removal of the plug when necessary.

It is a further object of the present invention to provide a bottle and closure plug combination so arranged that a portion of the circular peripheral area of the plug is used for efiecting a sealing action and another portion of the periphcry of the plug within the bottle is used for anchoring theplug in the bottle against withdrawal.

The attainment of the above and further objects of the present invention will be apparent from the following specification taken in conjunction with the accompanying drawing forming a part thereof.

In the drawing:

Figure 1 is a fragmentary longitudinal section through the top of a bottle embodying the present invention and having a plug therein;

Figure 2 is a view similar to Figure 1, of the same bottle, with the plug omitted;

Figure 3 is a perspective view of the plug of Figure 1;

Figure 4 is a view corresponding to Figure 2 showing an alternate bottle construction; and

Figures 5 and 6 are views corresponding to Figure 1 and showing two other embodiments of the present invention.

Reference may now be had to the drawing wherein like reference numerals designate like parts throughout.

In Figure 1 there is shown the neck I of a bottle, of glass or the like. The neck of the bottle is preferably, although not necessarily, of

roughened, as indicated at l. portion 1 extends around the entire periphery on circular cross section. The top of the bottle has the usual peripheral bead 2 for receiving a metal closure cap, and below the bead is a second peripheral bead 3, which is not only for decorating and strengthening the bottle but also for receiving and holding the lower endof a paper hood that may cover the top of the bottle, all as is well known in the art. The bottle has an opening or neck 6 which is preferably circular in-cross section and which constitutes the filling and discharging opening of the bottle.

On the interior of the bottle the neck 6 is The roughened the inside of the bottle and is of-a narrow width,

say of the order of one-eighth inch or onequarter inch, although it may be'wider if desired. The glass of the bottle may be roughened at 1 in any desired manner as, for instance, by etching, or by knurling the glass while hot during the molding process, or in any desired manner to produce a plurality of very small promiscuously distributed projections. Above the roughened portion 7 the interior of the bottle at '8 is smooth and preferably, but notnecessarily, circular in cross section.

A smooth cylindrical plug 9 of compressible material such as, preferably, paper, although'it may be made of other material if desired, is provided for closing the bottle. The plug isof a diameter slightly in excess of the diameter of the bottle opening 8. The plug is pressed into the bottle to a position illustrated in Figure 1. The roughened portion of the bottle bites into the periphery of the plug 9 and thus anchors the plug, rendering it quite unlikely that the plug will be expelled by pressures ordinarily developed within the bottle. The top of the plug 9 terminates flushwith the top fiat surface of the bottle, although that is not an indispensable part of the present invention since the top of the plug 9 may terminate below the top of the bottle, or even above the top of the bottle should that be desired. The cylindrical portion of the top half of the plug is compressed by the bottle and makes a sealing fit around the periphery of the bottle to prevent' leakage from the bottle or seepage of external moisture into the bottle.

The bottle of the present invention may be used for bottling liquids in general, such as fruit juices, milk drinks, or other non-carbonated liquids, or may be used for bottling carbonated liquids of the type that even develop a pressure within the bottle. The anchorage aiforded by the gripping of the roughened bottle surface I with the plug 9 is sufficient to retain the plug in the bottle under I tration thereof, since the amount of taper of the bottle opening is very small. The same plug illustrated in Figure 3 may be used on the bottle of Figure 4. By this arrangement the grip of the roughened surface I of the bottle of Figure 4 on the plug is greatly increased, thus further I inhibiting the tendency to expel the plug, and the tendency for leakage.

In Figure 5 there is shown a bottle similar to that of Figure 2, but differing therefrom essentially in that theinterior or neck 6a of the bottle terminates in a slight shoulder [2 which extends around the entire periphery of the bottle opening'and forms a stop for the plug 9. They topsurface of the shoulder l2 may be smooth to increase the sealing efiect of the plug 8.

The .plug 9 may be removed in any desired manner as, for instance, by a corkscrew or, if the plug is. very thin, say of the order of one-quarter inch, or even less in thickness, it may be removed by poking an ice pick into the plug adjacent to but spaced from the periphery thereof, thus tilting the plug and bending it. After the plug has been tilted a part thereof projects above the bottle top and may be gripped by the fingers to remove the plug. Regardless of the thickness of the plug the dimensions of the plug and roughened portion 7 are preferably such that approximately half of the peripheral surface of the plug is gripped by the roughened bottle surface and the other half of the peripheral surface of the plug is gripped bythe smooth bottle surface 8.

From the above description it is apparent that I have provided a bottle which may be closed by a plug, as illustrated in Figure l, or, if noplug is used, it may be closed by the standard type of metal bottle cap. The provision of the roughened surface 1 for a plug 9 does not interfere with the use of the bottle without the plug, that is,

with a standard type of metal cap.

In Figure 6 I have shown a bottle somewhat sim ilar to the bottles above described, differing there-' from essentially in that in addition to the knurled or roughened surface I, the bottle is provided with a projection l5 which extends around the entire periphery on the inside of the bore 6 at a level slightly above the level of the bottom of the plug in the form of a smooth curve or peripheral head. It produces a knob or protuberance past which the bottom of the plug is pushed in closing the bottle and which therefore serves to anchor the plug 9 in place. The projection l5 constitutes a constriction ring which constrictsa part of the plug 9 and thus helps to hold the plug.

In compliance with the requirements of the patent statutes I have here shown and described a few preferred embodiments of my invention. It is, however, to be understood that the invention is not limited to the precise constructions here shown, the same being merely illustrative of the principles of the invention. What I consider new and desire to secure by Letters Patent is:

l. A bottle having a neck adapted to receive a closure stopper plug, the interior of the neck having a stopper plug receiving portion, the part of the inner surface of the bottle neck which is adjacent the outer end of the neck being smooth for effecting a liquid-tight seal between the periphcry of a stopper and the neck of the bottle and the remainder of the stopper receiving portion on the interior of the neck being etched to facilitate holding a stopper plug against outward expulsion. 2. A bottle having a neck adapted to receive a closure stopper plug, the interior of the neck having a stopper plug receiving portion, the part of the inner surface of the bottle neck which is adjacent the outer end of the neck being smooth for effecting a liquid-tight seal between the periphery of a stopper and the neck ofthe bottle and the remainder of the stopper receiving portion on the interior of the neck having a plurality of promiscuously distributed small projections adapted to enter the periphery of a, stopper plug to releasably hold the stopper plug against outwardexpulsion.

3. A bottle having a neck adapted to receive a closure stopper plug,the interior of the neck being smooth at the outer end of the neck, and a plurality of promisouously distributed minute projections on the inside of the bottle neck forming aroughened peripherally extending plug receiving surface spaced from the outer end of the neck.

4. A bottle having a neck adapted to receive a closure stopper plug, the interior of the neck being smooth at the outer end of the neck, the remainder of theplug receiving portion of the interior of the bottle neck being roughened to provide a plurality of minute projections adapted to enter the periphery of a stopper plug and a narrow stopper-constricting ring on the interior of the neck at the roughened portion adapted to em- MONROE HARRISON. 

